CVE-2024-50298

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Source
https://cve.org/CVERecord?id=CVE-2024-50298
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50298.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-50298
Downstream
Related
Published
2024-11-19T01:30:46.029Z
Modified
2026-03-11T07:48:54.562799Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
net: enetc: allocate vf_state during PF probes
Details

In the Linux kernel, the following vulnerability has been resolved:

net: enetc: allocate vf_state during PF probes

In the previous implementation, vfstate is allocated memory only when VF is enabled. However, netdeviceops::ndosetvfmac() may be called before VF is enabled to configure the MAC address of VF. If this is the case, enetcpfsetvfmac() will access vf_state, resulting in access to a null pointer. The simplified error log is as follows.

root@ls1028ardb:~# ip link set eno0 vf 1 mac 00:0c:e7:66:77:89 [ 173.543315] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 [ 173.637254] pc : enetcpfsetvfmac+0x3c/0x80 Message from sy [ 173.641973] lr : dosetlink+0x4a8/0xec8 [ 173.732292] Call trace: [ 173.734740] enetcpfsetvf_mac+0x3c/0x80 [ 173.738847] _rtnlnewlink+0x530/0x89c [ 173.742692] rtnlnewlink+0x50/0x7c [ 173.746189] rtnetlinkrcvmsg+0x128/0x390 [ 173.750298] netlinkrcvskb+0x60/0x130 [ 173.754145] rtnetlinkrcv+0x18/0x24 [ 173.757731] netlinkunicast+0x318/0x380 [ 173.761665] netlinksendmsg+0x17c/0x3c8

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50298.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
d4fd0404c1c95b17880f254ebfee3485693fa8ba
Fixed
ef0edfbe9eeed1fccad7cb705648af5222664944
Fixed
7eb923f8d4819737c07d6a8d0daef0a4d7f99e0c
Fixed
e15c5506dd39885cd047f811a64240e2e8ab401b

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50298.json"